Prosthetic arm project What is a prosthetic?

With your elbow partner Who needs prosthetic arms?

Amelia Affected individuals are born with abnormally developed limbs Amelia syndrome is a genetic disorder that has a recessive pattern of inheritance Amelia the parents of an individual with tetra-amelia syndrome each carry one copy of the mutated gene, but do not show signs and symptoms of the condition

Syndactyly Results from a gene mutation where there is a fusing or webbing between fingers in the hand.

HFG Syndrome HFG Syndrome has a shortening and curling of the fingers and fusion of the bones in the wrist Due to a mutation in a single gene that codes for a protein that controls development of limbs before birth

Arm Developed by college students Mvg

Derby’s 3D printed arms IN8aY

Q

Prosthetic Arm build project!

When engineers design a prosthetic, they usually have a specific problem or task in mind. They have to select the materials, design, and construction that suits their prosthetic’s needs best. In this activity, you will design a prosthetic arm that needs to be able to pick up a Styrofoam cup. You’ll have a variety of limited materials to choose from. You’ll select your materials, sketch out your design, then build and test your prosthetic arm. If it doesn’t work, go back to the drawing board and try again!

Possible Materials 3-inch wide and approximately 22-inch long strips of cardboard, 4 max Binder clips (different sizes), 10 max Brads (aka paper/brass fasteners), 10 max Craft sticks, 15 max string, 10 feet max straws- 7 max Paper clips (different sizes), 15 max Pencils, 4 max (provided by your group members!) Rubber bands (different sizes), 15 max Tape, clear and masking Cardboard scraps of various sizes, 10 max

Criterion Your goal is to design a Prosthetic arm that can pick up a cup. The arm must be built using materials from the list above and must be at least 18 inches long.

Design process-Step 1 ASK 1.What is the problem? What is the problem or issue to you? You can think Globally or in the classroom.

Design process-Step 1 ASK 1. How have others approached it?

Design process-Step 1 ASK 1.What are your constraints? – Materials list – Criterion – Testing rubrics – Trial station in class

Design Process- Step 2 IMAGINE 3 minutes- SILENT DRAW! Draw a rough sketch of your own idea in the “Partner 1” Share your sketches with each other. You can ask clarifying question, but no critique. Draw a rough sketch of everyone's ideas into the other partner boxes. Discuss pros and cons of each drawing. Combine ideas or choose one idea that you think will work the best TAKE THIS IDEA TO STEP 3- the plan!

Design Process-Step 3 PLAN Draw a diagram, identify materials on the drawing, and list the materials needed (include Quantity). Get your materials list and planned approved by your teacher Collect your materials and onto STEP 4-CREATE! When you are ready to Test your idea come get your teacher and hand over 1 student rubric

Design Process Step 5 Improve STEP 4-CREATE! When you are ready to Test your idea come get your teacher and hand over 1 student rubric Step 5-IMPROVE 1.Answer the 3 questions in your packet! 2.Share your answers with your group and come up with changes you can do to your initial design to improve it.! PLAN and RETEST! When your group is done. Disassemble your arm and recycle anything that can be reused. Answer your follow up questions following the directions

Clean up Return Scissors, Tape, and plastic cups to the supply pile Place your labeled cardboards, starts of your arms, and any supplies you “shopped” for onto your groups paper in the back.